Input devices

What will be measured is a change in electric charge in the circuit. Circuit contains a sensing pin through which this chamge is happening. To multiply the result one have to attatch a piece of conductive material to this pin.

This materials can be:

copper (plate)

aluminium (foil)

water (plants, fruits, humans)

At its most sensitive point, the sensor will start to sense a hand or body centimeters away from the sensor.

For testing I’m using Capacitive Sensor example code uploaded on Arduino. I’m really new to coding and I feel somehow more welcome while working in Arduino Web Editor. Also as a designer I really appreciate the simple and aesthetical interface design.

Conclusions: The bigger resistor I’m putting the morese nsible sensor is (higher values printed in Serial Monitor). It also feels the presence of a hand from a small distance. Orange is less conductve than aluminium foil, which is more conductive than copper plate. The values also depends on the size of the sensor.

IMPORTANT: every time after uploading the code or connecting the sensor after disconnecting, one have to wait few seconds so the sendor can establish 0 value.

Though I have to change one important componenet: nstead of AtTiny44 I’m goingto use AtTiny84. I need a bigger memory size on the microchip to upload twi libraries: CapacitiveSensor and SoftwareSerial. On top of that I’malso adding a LED.

I’m designing the file in Eagle. Seems like I have to puta lot of bridges to make a proper wiring!

I’m exporting png file from Eagle. I’m cropping them in Photoshop and making a file for cut-out.

This files I’m going to use as an input files for creating rml files in MODS.